CN2654557Y - Lifting machine safety protection device - Google Patents
Lifting machine safety protection device Download PDFInfo
- Publication number
- CN2654557Y CN2654557Y CN 200320114916 CN200320114916U CN2654557Y CN 2654557 Y CN2654557 Y CN 2654557Y CN 200320114916 CN200320114916 CN 200320114916 CN 200320114916 U CN200320114916 U CN 200320114916U CN 2654557 Y CN2654557 Y CN 2654557Y
- Authority
- CN
- China
- Prior art keywords
- pull bar
- contact
- superelevation
- guide rod
- attaching parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a safe protective device of a hoister, which comprises a box base, and a guiding pulley which is connected with the box base by a connecting part, wherein, the box base is provided with a drawing rod, a conductive rod, a switch and a contactor, the drawing rod and the conductive rod are arranged in parallel and connected with the connecting part of the guiding pulley as a whole. The safe protective device is arranged on the lateral support of the frame of the hoister, and the steel rope between the winch and the high beam pulley goes through the guiding pulley and forms an angle so that a lateral force is forced to the guiding pulley after the steel rope is tightened. The force can be used to realized the protective control of overweight, overhigh, and loose or mass of the steel rope to guarantee the construction safety. Besides, the utility model has the advantages of small volume, light weight, simple and reasonable structure, easy installment, flexible operation, low cost, reliable property, convenient adjustment and overall function. Thus the device is an ideal safe protective device for hoisters.
Description
Technical field
The utility model relates to a kind of safety device, especially a kind of multifunctional safety protection device that uses on portal frame and derrick material elevator.
Background technology
At present, be widely used in the gig in industrial and mineral, building and other industry, regular meeting causes safety misadventure because of the reason of aspects such as overload, superelevation, slack rope or disorder cable.In actual applications, for guaranteeing the safe in operation of gig, people once studied, developed different safety devices, but these devices or complex structure are bulky, the cost height; Course of action is long, poor sensitivity; Only possesses the mono-function.Therefore, be necessary existing safety device is improved.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, the mine hoist safety protective device that function is more complete.
The utility model is realized by following technical proposal: described mine hoist safety protective device comprises and which is provided with pull bar, guide rod, switch and the cassette holder of contact and the leading sheave that links to each other with cassette holder by attaching parts, wherein, pull bar, guide rod are set up in parallel and are connected as a single entity with the attaching parts of leading sheave.
Described attaching parts is arranged on the shift fork of adapter plate one side by adapter plate, is connected on the declutch shift shaft and around the pendulum of axle swing and pitches formation, and leading sheave is installed on the pendulum fork shaft, so that rotate around the pendulum fork shaft.
Described pull bar is arranged on the cassette holder middle part, and pull bar is provided with pull back spring, and guide rod places in the guide pin bushing and is arranged in the pull bar both sides respectively, and an end of pull bar and guide rod all links to each other with the opposite side of attaching parts adapter plate, so that move with attaching parts, travelling backwards under the pull back spring effect afterwards.
Two pairs of anti-loose, anti-overweight and anti-superelevation that described switch and contact are made as respectively, wherein switch is a travel switch, be arranged on the cassette holder in the guide pin bushing outside, the anti-slack rope contact that matches with it is corresponding to be arranged on the adapter plate of attaching parts, during the adapter plate return, they are collided, be used to prevent the loose or random of steel cable; The anti-overweight contact that matches with it is arranged on the guide rod other end accordingly by connecting rod, after guide rod moves with adapter plate, contact and switch is collided, and is used to prevent overload; Cooresponding with it anti-superelevation contact is provided with
At an end of superelevation limit lever, the other end of this lever links to each other with anti-superelevation stay cord, is used for anti-superelevation.
The utility model compared with prior art has following advantage and effect: because the safety protective device has been installed on the horizontal support of gig frame, after making the leading sheave of this device of steel wire penetrating between hoisting machine and day beam pulley, shape in an angle, thereby after the steel rope tensioning, will produce a horizontal pull to leading sheave, it is overweight to utilize this pulling force to realize, superelevation, steel cable pine or random defense controls, ensure construction safety, in addition also to have a volume little for the utility model, in light weight, structure is quite simple, rationally, easy for installation, flexible operation, cost is low, dependable performance, it is convenient to adjust, and function congruence characteristics are a kind of desirable mine hoist safety protective devices.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the installation site figure of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further, is not limited in this but hold within the utility model.
Among the figure, 1 is leading sheave, be installed on the axle 23 of pendulum fork 2, pendulum fork 2 is installed on the axle 24 of shift fork 3, shift fork 3 is installed in adapter plate 4 one sides, the opposite side of adapter plate 4 and pull bar 5, one end of two guide rods 6 links to each other, wherein two guide rods 6 place guide pin bushing 18 respectively, and be arranged in the both sides of pull bar 5 respectively, the other end of each bar is subjected to the support of cassette holder 7, pass through captive nut 8 mounting spring 9 on the pull bar 5, travel switch 10 is installed in cassette holder 7 two ends respectively, cooresponding with it anti-slack rope contact 11 is installed on the adapter plate 4, anti-overweight contact 12 is installed in the end of guide rod 6 by connecting rod 13, anti-superelevation contact 14 is installed in an end of superelevation limit lever 16, this lever is installed on the cassette holder 7 by hinge 15, so that lever is around hinge 15 swings, the other end of lever 16 connects stay cord 17, the other end of stay cord 17 links to each other with the spacing push rod 25 of the superelevation on being fixed on frame, the spacing push rod 25 of superelevation can be swung on the horizontal support of frame 19, anti-overweight contact 12 and anti-superelevation contact 14 shared travel switches, and cassette holder 7 is fixed on the horizontal support 20 of gig frame 19,21 is hanging basket, and 22 is the winch steel rope.During work, hanging basket 21 moves on winch steel rope 22, because steel rope 22 passes leading sheave 1, make steel rope 22 shapes in an angle, after the tensioning leading sheave 1 is produced a horizontal pull, thereby leading sheave 1 is moved to right, spring 9 is compressed, while pull bar 5, guide rod 6 also moves to right thereupon, and hanging basket keeps propradation under the normal circumstances, but overweight or when blocking hanging basket because of other object when hanging basket 21, make leading sheave 1 and pull bar 5, guide rod 6 further moves to right, at this moment, promptly back down its normally closed contact after the anti-overweight contact of guide rod end 12 is collided with travel switch 10 and cut off the power supply, stop to carry on the hanging basket; When hanging basket 21 lands, steel rope 22 no longer bears tension force, its horizontal pull to leading sheave 1 also disappears thereupon, pull bar 5 is return under the effect of spring 9, leading sheave 1 is also moved to left thereupon, and anti-slack rope contact 11 is collided with travel switch 10, thereby backs down its contact and cut off the power supply, winch stops operating, and has effectively prevented the slack rope or the disorder cable phenomenon of steel rope; When hanging basket 21 rises to the superelevation position, make the upwards swing of the spacing push rod 25 of superelevation, and move on the pulling stay cord 17, then superelevation limit lever 16 is around hinge 15 swings, thereby anti-superelevation contact 14 is collided with travel switch 10, back down its contact and cut off the power supply, prevent the hanging basket superelevation and cause the accident of rushing to summit.
Claims (4)
1, a kind of mine hoist safety protective device, it is characterized in that comprising and which is provided with pull bar, guide rod, switch and the cassette holder of contact and the leading sheave that links to each other with cassette holder by attaching parts, wherein, pull bar, guide rod are set up in parallel and are connected as a single entity with the attaching parts of leading sheave.
2, safety device according to claim 1 is characterized in that described attaching parts by adapter plate, is arranged on the shift fork of adapter plate one side, is connected on the declutch shift shaft and around the pendulum of axle swing and pitches formation, and leading sheave is installed on the pendulum fork shaft.
3, safety device according to claim 1, it is characterized in that described pull bar is arranged on the cassette holder middle part, and pull bar is provided with pull back spring, and guide rod places in the guide pin bushing and is arranged in the pull bar both sides respectively, and an end of pull bar and guide rod all links to each other with the opposite side of attaching parts adapter plate.
4, safety device according to claim 1, it is characterized in that described switch and contact are made as two pairs of anti-loose, anti-overweight and anti-superelevation respectively, wherein switch is a travel switch, be arranged on the cassette holder in the guide pin bushing outside, the anti-slack rope contact that matches with it is corresponding to be arranged on the adapter plate of attaching parts; Anti-overweight contact is arranged on the guide rod other end accordingly by connecting rod; Anti-superelevation contact is arranged on an end of superelevation limit lever, and the other end of this lever links to each other with anti-superelevation stay cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114916 CN2654557Y (en) | 2003-10-23 | 2003-10-23 | Lifting machine safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114916 CN2654557Y (en) | 2003-10-23 | 2003-10-23 | Lifting machine safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654557Y true CN2654557Y (en) | 2004-11-10 |
Family
ID=34345632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114916 Expired - Fee Related CN2654557Y (en) | 2003-10-23 | 2003-10-23 | Lifting machine safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654557Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091025A (en) * | 2012-12-27 | 2013-05-08 | 中信重工机械股份有限公司 | Loading limit tension measuring device |
| CN106044074A (en) * | 2016-08-16 | 2016-10-26 | 车新宁 | Quick tensile force relieving device for belt conveyer |
| CN107253682A (en) * | 2017-05-25 | 2017-10-17 | 中国冶集团有限公司 | A kind of hoisting rope tenslator |
-
2003
- 2003-10-23 CN CN 200320114916 patent/CN2654557Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091025A (en) * | 2012-12-27 | 2013-05-08 | 中信重工机械股份有限公司 | Loading limit tension measuring device |
| CN103091025B (en) * | 2012-12-27 | 2015-09-02 | 中信重工机械股份有限公司 | A kind of limit for tonnage formula tension measuring device |
| CN106044074A (en) * | 2016-08-16 | 2016-10-26 | 车新宁 | Quick tensile force relieving device for belt conveyer |
| CN106044074B (en) * | 2016-08-16 | 2017-12-29 | 车新宁 | A kind of belt feeder pulling force quick release device |
| CN107253682A (en) * | 2017-05-25 | 2017-10-17 | 中国冶集团有限公司 | A kind of hoisting rope tenslator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |